Bigeye thresher vs Grey worm

Alopias pelagicus compared with Aporrectodea caliginosa

Key Differences

• Bigeye thresher is Endangered while Grey worm is Not Evaluated.

Taxonomic Classification

Rank	Bigeye thresher	Grey worm
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Annelida (Segmented Worms)
Class	Chondrichthyes (Cartilaginous Fish)	Clitellata (Clitellata)
Order	Lamniformes (Mackerel Sharks)	Crassiclitellata (Crassiclitellata)
Family	Alopiidae	Lumbricidae
Genus	Alopias	Aporrectodea
Species	Alopias pelagicus	Aporrectodea caliginosa

Evolutionary Relationship

Bigeye thresher and Grey worm share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bigeye thresher

EN — Endangered

Grey worm

NE — Not Evaluated

Physical Characteristics

Attribute	Bigeye thresher	Grey worm
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigeye thresher

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Colombia and Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Grey worm

Habitat

Native to Africa and Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Africa (South Africa), Asia (Taiwan), Europe (5 countries), and North America (United States).

Bigeye thresher

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Shared Countries

Both species can be found in 1 countries:

🇹🇼 Taiwan